个人网上银行可以缴纳全国任何一部手机话费。
参考答案：错
There is no ______, in my opinion, of discussing this problem now. it’s obviously too late.[ ]
A．point
B．good
C．doubt
D．use
下述氨基酸能直接脱去氨基变成α-酮酸的为( )
A．精氨酸B．苏氨酸C．瓜氨酸D．组氨酸E．丙氨酸
